576 JOURNAL OF SCIENCE. 
cludes the Muricide, the Olivide, the Columbellide, the Mar- 
ginellide, the Volutidx, the Mitride, the Fasciolaride, and the 
Buccinide. All species not known to occur in New Zealand are 
struck out, and the synonymy of the real species is given, together 
with their geographical distribution and short diagnostic charac- 
ters. Thus 37 species are removed from the list, and 45 remain. 
The more important changes are the following :— 
Purpura vugosa (Quoy), is identified with Fusus stangeri (Gray), 
and put into Tvophon. 
Fusus covticatus (Hutton), is identified with Fusus duodecimus 
(Gray), and put into a new genus, called Kalydon, having the shell 
of Uvosalpina, with the operculum of Tvophon. 
Purpura haustrum (Martyn), is placed in a new sub-genus of 
Polytropa, called Lepsia. 
Marginella albescens (Hutton), is identified with M. fans 
(Reeve). 
All the New Zealand species of Euthna are referred to Prsama, 
Buccinum funeveum (Gould), is identified with Cominella lunida 
(Philippi), and with B. zealandicum (Hombron and Jacquinot). 
2. Notes on Botrychium lunana, by T. Kirk, F.L.S. This 
paper compares the specimens of this fern collected by Mr J. D. 
Enys with plants trom England. The species occurs in the 
British Isles, Australia, Tasmania, Tierra del Fuego, as well as 
generally through the northern hemisphere, and is remarkable 
for the great length of time required for the development of the 
leaves, it being only in the fourth year that the frond appears 
above ground. 
Christchurch, 4th October, 1883.—Prof. F. W. Hutton, Presi- 
dent, in the chair. 
New Members,—Dr. R. von Lendenfeld, F. Wilding. 
Papers—1. ‘‘The Hot Winds of Canterbury,” by Fred. 
Barkas, A.Sc., F.C.S., &c. This paper explained the hot winds 
by Dr. Hann’s theory of the Fohn, or hot winds of Switzerland. 
If the wind was perfectly dry when it reached the western bases 
of the Alps it would as it ascended the mountains expand and 
become colder ; as it descended the other side of the mountains 
it would be compressed, and at. the bottom would regain exactly 
the same amount of sensible heat as it had previously lost ; so that 
a dry wind would undergo no permanent change in temperature. 
But it the wind was saturated with moisture when it reached the 
Alps the case would be far otherwise. As the wind ascended and 
became cooler the moisture would condense and fall in rain on the 
western slopes of the mountains. By the time it reached the top, 
one-fourth or even one-third of its moisture would have been lost. 
On reaching the other side the wind becomes warmer, but cai- 
not again take up the moisture it is capable of holding; it becomes 
therefore a dry wind. But as the rain is being formed the latent 
heat of the aqueous vapour is given out which prevents the wind 
falling to so low a temperature at the summit of the range as it 
otherwise would have, and the wind when it reaches the plains not 
only regains the heat due to compression, but has in addition the 
increased heat due to the rainfall during its ascent of the moun- 
tains. The increase due to rainfall has been calculated at about 
1 deg. F. for every 360 feet in height of the mountain range, so 
